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Solar Energy Cell Project

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by

Kim Huynh

on 28 April 2014

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Transcript of Solar Energy Cell Project

Solar Energy Cell Project
1. Measure 2 g of titanium oxide and put in a mortal and pestle.
Experimental Design
4. Measure the resistance of two microscope slides to find the conductive side of both.
5. Tape the slides down, one with the conductive side up and one with it down.
6. Spread the mixture that has been sitting onto the slide with the conductive side up. Make sure it is smooth.







Experimental Design
8. While the slide with titanium oxide is drying, mix glycerol and graphite powder in a 20 mL beaker.
9. Spread glycerol mixture in a thin layer on the conductive side of the second slide and let dry.

Experimental Design
10. Once both slides have dried, add 3 drops of 1,1’-Diethyl-2,2’-cyanine iodide or 1,1’-Diethyl-2,2’-dicarbocyanine iodide

11. Put both slides together,
letting one edge hang off about
a centimeter. Secure with
two binder clips.
12. Add a few drops of KI3 electrolyte solution to the slides, ensuring that it goes between the slides.
Experimental Design
By: Kim Huynh, McKenna Reinhard, Patrick Stinely and Hayleigh Cromer
Solar Cells:
The Problem/Question
Solar Cells:
A solar cell is a device that converts the energy absorbed from light into electricity. They are typically made from silicon and come in varying shapes and sizes.
2. Add 5% acetic acid to the mortar and pestle in 1 mL quantites up to 3 mL. Mix well.
3. Add 5 drops of Liquid Nox to
the mortar and pestle. Mix well and let sit for 10 min.

Testing under different light sources
Results:
Lighting:
Lighting: 120 V LED
Lighting: Candle
7. Remove tape and allow the titanium oxide mixture to dry.

Fluorescent 60 w
1,1’-Diethyl-2,2’-cyanine iodide, non-baked:
Before: 300 mV After: 424 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, baked:
Before: 270 mV After: 380 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, non-baked:
Before: 280 mV After: 330 mV
Manufactured Solar cell
Before: 485 mV After: 825 mV
1,1’-Diethyl-2,2’-cyanine iodide, non-baked:
Before: 300 mV After: 400 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, baked:
Before: 270 mV After: 323 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, non-baked:
Before: 280 mV After: 350
mV
Manufactured Solar cell
Before: 485 mV After: 840 mV
1,1’-Diethyl-2,2’-cyanine iodide, non-baked:
Before: 300 mV After: 380 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, baked:
Before: 270 mV After: 320 mV
1,1’-Diethyl-2,2’-dicarbocyanine iodide, non-baked:
Before: 280 mV After: 330 mV
1,1’-Diethyl-2,2’-cyanine iodide, non-baked responds best to 60 W fluorescent light
1,1’-Diethyl-2,2’-dicarbocyanine iodide, baked responds best to 60 W fluorescent
1,1’-Diethyl-2,2’-dicarbocyanine iodide, non-baked responds best to 120 V LED
Manufactured Solar Cell responds best to 120 V LED
Discussion
&
Reflection:
Best solar cell: 1,1’-Diethyl-2,2’-cyanine iodide, non-baked.
Conclusions:
The Problem
Solar cells are based on
inorganic
materials, which means they require high costs and high production energy.
The Solution
Creating dye-sensitized solar cells, which are much cheaper but not as efficient. This brings us to the goal of our experiment: producing the most efficient dye-sensitized solar cell.
Improvements
&
Future Investigation
Data Shows:
Increase in Voltage after every test
Constructed cells voltage never reached 450 mV
Testing Methods
Varying light sources:
60 W fluorescent
120 V LED
Candle
1. Measure the voltage of each solar cell before exposure to light.
2. Add electrolyte solution to the solar cell.
3. Expose the cell to the light source, keeping it 9 inches away (or 2 inches above for candle) for five minutes.
4. Measure the voltage.
5. Let the cells sit out of light for five minutes and repeat for other light sources.
Importance of The Study
Testing Methods
1. Twist the prongs of the 1.6 V LED and put one on the positive side of the cell and one on the negative side.
2. Place under fluorescent lamp and let sit.
3. Observe for ten minutes.
LED Test:
A semiconductor: titanium dioxide
Testing between two dyes: 1,1’-Diethyl-2,2’-dicarbocyanine iodide and 1,1’-Diethyl-2,2’-cyanine iodide
Which dye will produce a solar cell with a higher voltage and will perform the best under varying light sources?
Data
Data
Data
Manufactured Cell always reached 800 mV
Finding the most efficient way to construct a dye-sensitized solar will allow for a more sustainable and cheaper energy source
Cheaper = More accessible to a wider range of people
Solar energy is clean and an environmentally friendly source of energy compared to other sources
Hypothesis
How did we do this?
Cells made with 1,1’-Diethyl-2,2’-cyanine iodide yielded highest results
The dye 1,1’-Diethyl-2,2’-cyanine iodide is the more efficient dye for this cell
Original Question: " Which solar cell is the most efficient: The 1,1’-Diethyl-2,2’-cyanine iodide cell or 1,1’-Diethyl-2,2’-dicarbocyanine iodide cell?"
A single dye-sensitized cell cannot compare to a single manufactured cell
Dye chosen is the primary factor during construction
Varying results during tests hinders reliability
Improvements:
Longer duration of tests
More efficient and controlled baking process
Compare Voltages to more types of cells
Future Investigation:
Putting multiple cells in series
Power different LED lights
Varying amounts of materials used
Any Questions?
The Goal:
Full transcript